I think maybe 99% of the fans (this is just my estimation) accepts Ian McKellen as Gandy. It may not have been their first choice, but he worked. Another estimation is that maybe 80 % loves Ian McKellen as Gandy (as myself). Like Silverlode I think this announcement is the closest we can get to a mutual Yay-feeling around here. Or a mutual Nay-feeling for that matter, if he does not reprise his role as Gandalf.